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Spiros G. Raftis

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Patents Grantslast 30 patents

  • Information Patent Grant

    Multi-outlet check valve nozzle
    • Patent number 10,316,977
    • Issue date Jun 11, 2019
    • Red Valve Company, Inc.
    • Spiros G. Raftis
    • Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
  • Information Patent Grant

    Method and apparatus for preventing stagnation in fluid reservoirs
    • Patent number 7,104,279
    • Issue date Sep 12, 2006
    • Red Valve Co., Inc.
    • Spiros G. Raftis
    • C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
  • Information Patent Grant

    Check valve with hanger
    • Patent number 6,953,059
    • Issue date Oct 11, 2005
    • Red Valve Company, Inc.
    • Spiros G. Raftis
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Reinforced tide gate valve
    • Patent number 6,585,005
    • Issue date Jul 1, 2003
    • Red Valve Co., Inc.
    • Spiros G. Raftis
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Passive flow control valve
    • Patent number 6,561,225
    • Issue date May 13, 2003
    • Red Valve Co., Inc.
    • Spiros G. Raftis
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
  • Information Patent Grant

    Flip check valve
    • Patent number 6,412,514
    • Issue date Jul 2, 2002
    • Red Valve Company, Inc.
    • Spiros G. Raftis
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Check valve with oversized bill
    • Patent number 6,367,505
    • Issue date Apr 9, 2002
    • Red Valve Co., Inc.
    • Spiros G. Raftis
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Fine bubble diffuser
    • Patent number 6,367,783
    • Issue date Apr 9, 2002
    • Red Valve Company, Inc.
    • Spiros G. Raftis
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Grant

    Air diffuser valve
    • Patent number 6,016,839
    • Issue date Jan 25, 2000
    • Red Valve Co., Inc.
    • Spiros G. Raftis
    • C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
  • Information Patent Grant

    Asymmetrical check valve
    • Patent number 5,931,197
    • Issue date Aug 3, 1999
    • Red Valve Co., Inc.
    • Spiros G. Raftis
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Inversion-resistant, readily openable tide gate valve
    • Patent number 5,769,125
    • Issue date Jun 23, 1998
    • Red Valve Company, Inc.
    • Michael Duer
    • E03 - WATER SUPPLY SEWERAGE
  • Information Patent Grant

    Inversion-resistant, readily openable tide gate valve
    • Patent number 5,606,995
    • Issue date Mar 4, 1997
    • Red Valve Company, Inc.
    • Spiros G. Raftis
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Method of making a pressure relief value
    • Patent number 5,282,314
    • Issue date Feb 1, 1994
    • Red Valve Company, Inc.
    • Spiros G. Raftis
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Pressure relief valve
    • Patent number 5,215,123
    • Issue date Jun 1, 1993
    • Red Valve Company, Inc.
    • Spiros G. Raftis
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Pressure-reducing noise-abating control valve
    • Patent number 4,923,166
    • Issue date May 8, 1990
    • Red Valve Company, Inc.
    • Spiros G. Raftis
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Temperature-resistant isolation fluid pressure detector
    • Patent number 4,763,527
    • Issue date Aug 16, 1988
    • Red Valve Co., Inc.
    • Spiros G. Raftis
    • G01 - MEASURING TESTING
  • Information Patent Grant

    Inversion-resistant, readily-openable tide gate valve
    • Patent number 4,607,663
    • Issue date Aug 26, 1986
    • Red Valve Co., Inc.
    • Spiros G. Raftis
    • E03 - WATER SUPPLY SEWERAGE
  • Information Patent Grant

    Inversion-resistant tide gate valve
    • Patent number 4,585,031
    • Issue date Apr 29, 1986
    • Red Valve Co., Inc.
    • Spiros G. Raftis
    • E03 - WATER SUPPLY SEWERAGE
  • Information Patent Grant

    Isolation fluid pressure detector
    • Patent number 4,534,224
    • Issue date Aug 13, 1985
    • Red Valve Company, Inc.
    • Spiros G. Raftis
    • G01 - MEASURING TESTING
  • Information Patent Grant

    Deformable sleeve for a pinch valve
    • Patent number 4,523,738
    • Issue date Jun 18, 1985
    • Red Valve Co. Inc.
    • Spiros G. Raftis
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Tide gate valve
    • Patent number 4,492,253
    • Issue date Jan 8, 1985
    • Red Valve Company, Inc.
    • Spiros G. Raftis
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Pinch valve sleeve
    • Patent number 4,372,528
    • Issue date Feb 8, 1983
    • Red Valve Co., Inc.
    • Spiros G. Raftis
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Pinch valve
    • Patent number 4,268,005
    • Issue date May 19, 1981
    • Red Valve Company, Inc.
    • Spiros G. Raftis
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Pinch valve
    • Patent number 4,172,580
    • Issue date Oct 30, 1979
    • Red Valve Company Inc.
    • Spiros G. Raftis
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Pinch valve construction
    • Patent number 4,125,125
    • Issue date Nov 14, 1978
    • Ezekoye; Levi I.
    • Levi I. Ezekoye
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...

Patents Applicationslast 30 patents

  • Information Patent Application

    Multi-Outlet Check Valve Nozzle
    • Publication number 20120247595
    • Publication date Oct 4, 2012
    • Red Valve Company, Inc.
    • Spiros G. Raftis
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    Directly Fluid Operated Pinch Valve
    • Publication number 20080083889
    • Publication date Apr 10, 2008
    • Red Valve Company, Inc.
    • Spiros G. Raftis
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    First flush passive flow control valve
    • Publication number 20070246113
    • Publication date Oct 25, 2007
    • Red Valve Company, Inc.
    • Spiros G. Raftis
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
  • Information Patent Application

    Mixing device
    • Publication number 20060120214
    • Publication date Jun 8, 2006
    • Red Valve Company, Inc.
    • Spiros G. Raftis
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Application

    Check valve with hanger
    • Publication number 20040069360
    • Publication date Apr 15, 2004
    • Spiros G. Raftis
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    Flexible weir style pinch valve
    • Publication number 20040033108
    • Publication date Feb 19, 2004
    • Chris Raftis
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    Method and apparatus for preventing stagnation in fluid reservoirs
    • Publication number 20030205277
    • Publication date Nov 6, 2003
    • Spiros G Raftis
    • C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
  • Information Patent Application

    Passive flow control valve
    • Publication number 20020104573
    • Publication date Aug 8, 2002
    • Red Valve Company, Inc.
    • Spiros G. Raftis
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING